---
name: "apply_matrix_f"
section: "3alleg4"
platform: "linux"
package: "allegro4-doc"
version: "2:4.4.3.1-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/apply_matrix/3alleg4"
---

# apply\_matrix\_f(3alleg4)

Multiplies a point by a transformation matrix. Allegro game programming library.

Part of [apply\_matrix(3alleg4)](/apply_matrix/3alleg4.md).

## NAME

apply\_matrix, apply\_matrix\_f - Multiplies a point by a transformation matrix. Allegro game programming library.

## SYNOPSIS

**#include \<allegro.h\>**

**void apply\_matrix(const MATRIX \*m, fixed x, y, z, \*xout, \*yout, \*zout);**

**void apply\_matrix\_f(const MATRIX\_f \*m, float x, y, z, \*xout, \*yout, \*zout);**

## DESCRIPTION

Multiplies the point (x, y, z) by the transformation matrix m, storing  the result in (\*xout, \*yout, \*zout).

## SEE ALSO

**matrix\_mul**(3alleg4), **ex12bit**(3alleg4), **ex3d**(3alleg4), **exstars**(3alleg4)